Re: why is premiere pro cs4 rebuilding media cache files everytime open a project?

The problem with the media preference settings (for those of switching hard drives) is that they are global, so for instance, if you set the media files specifically to go to a folder, then that setting will be true for all projects an any drive. So when you go back to the first Hard Drive and open that project and the program looks for you files in a drive that doesn't exist, it creates new files in the default location (adobe/common). Then if you change the settings to the folder on the drive you want the next time it runs it sees that the info has changed and creates new files in there - again - it won't even recognize the files it created in earlier attempts, I guess because they don't match the file names in the Media Cache database.

So what I have done is as follows: Leave the Database in the Adobe/common folder so all your projects can access it, and then for the Media Cache itself, select the check mark that says something like "put the cache next to to the source files." I don't have the program in front of me. That should permanently solve the problem. It did for me anyway. Basically, you should never change the media preference settings once the are set.